FBI agents were at the Louisville office of U.S. Sen. Mitch McConnell for about an hour Wednesday as they investigated a secret recording of McConnell and his aides discussing in February how to attack actress Ashley Judd.

“It appears they have several leads and that we will hear from them in the not too distant future,” said Jesse Benton, McConnell’s campaign manager, in a telephone interview. “I hope everything comes out in a trial.”

Benton said staffers handed over pertinent information to the FBI, which asked the campaign not to discuss details of the probe.

Benton told Sean Hannity’s national radio show that the campaign “brought a couple people to the attention” of the FBI, but he did not identify anyone. He also said he does not think anyone from McConnell’s “team” did anything wrong.

In public statements Tuesday, McConnell, the Senate Republican leader, accused “the left” of using “Nixonian” tactics to bug his campaign headquarters in Louisville.